Granted Patent
Utility
US 5,361,693 · App. 07/987,379
Tungsten carbide welded printer tips
Inventors:
Norman E. Farb, James Y. Chon
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Dec 8, 1992
Inventors
Norman E. Farb
James Y. Chon
Assignee (at issue)
PRINTRONIX, LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.